Whether on Android or iOS, open YouTube to search for the video you would like to show as a product video. If the YouTube link doesn't work properly then follow the instructions. At first, click on the “Share” button or feature under the video you wish to share. Go to the YouTube video to which you want to add the product video > Share > Embed > Copy the src link and paste it into the product video info.
If you want to know The process of adding a YouTube video to AmazCart's product categories then go to the AmazCart dashboard to find the Product option to click on the add new product & you will see the list of products if you want to add a specific product for adding youtube video. So find the select option to click on the edit option on the product list that you want, You will see the product editable information that you already created, look at the product editable interface to the right side on the Product Video Info.
If you want to know which link you have to put on the product video then follow the picture below. You have to Copy the src link and paste it into the product video info.